Question

tìm x : 

8 . x + 32 = 40

216 -11x = 95

( x + 72 ) - 184 = 0

289 - ( x + 167 ) = 65

Answer 1

\(8x+32=40\Rightarrow8x=8\Rightarrow x=1\\ 216-11x=95\Rightarrow11x=121\Rightarrow x=11\\ \left(x+72\right)-184=0\Rightarrow x+72=184\Rightarrow x=112\\ 289-\left(x+167\right)=65\Rightarrow x+167=224\Rightarrow x=57\)

Answer 2

8 . x + 32 = 40

8 . x = 40 - 32

8 . x = 8

x = 8 : 8 

x = 1

 

216 -11x = 95

11x = 216 - 95

11x = 121

x = 121 : 11

x = 11

 

( x + 72 ) - 184 = 0

x + 72 = 0 + 184

x + 72 = 184

x = 184 - 72

x = 112

 

289 - ( x + 167 ) = 65

x + 167 = 289 - 65

x + 167 = 224

x = 224 - 167

x = 57